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Solving System of Equations Elimination

Authored by Anthony Clark

Mathematics

9th Grade

CCSS covered

Solving System of Equations Elimination
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14 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

________________ are two or more equations that have the same variables and work together.

graphing lines

elimination method

system of equations

table

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nancy went to the grocery story.  On Monday she purchased 4 apples and 6 bananas for a total of $13.  On Wednesday she purchased 3 apples and 7 bananas for a total of $13.50.  Which system of equations represents the situation?

4x + 6y = 3
13.5x - 13y = 6

x + y = 4
x - y = 6

4x + 6y = 13
3x + 7y = 13.5

4x - 6y = 13
3x - 7y = 13.5

Tags

CCSS.8.EE.C.8C

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Homer sells tickets for admission to your school play and collects a total of $104. Admission prices are $6 for adults and $4 for children. He sold 21 tickets total. Solve the system:
x + y = 21
6x + 4y = 104

(10, 11)

(12, 9)

(11, 10)

(9, 12)

Tags

CCSS.8.EE.C.8C

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Will the solution (-3, -7) make the following system of equations a true statement? 
y = 4x + 5
y = x – 4

YES

NO

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

what does the top equation need to be multiplied by to create a zero pair?


2x - 6y = 20

2x + 5y = -11

-1

1

-2

2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 4x + 8y =  20
-4x + 2y = -30

(-7,1)

(2,-5)

(-2,5)

(7,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve by elimination 
  2x + 9y = -7
6x - 3y = 9 

(-1, -1) 

(2,-1)

(1,1)

(1,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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